Uneven heating of land and water creates wind by forming _____

• equal temperature zones
• different volume zones
• equal density zones
• different pressure zones

Cool air rushing in toward the low pressure zone over the land forms a _____

• sea current
• land current
• sea breeze
• land breeze

Air is constantly moving all around the world in cycles, or _____

• flows
• currents
• ovals
• circuits

Earth is a sphere, so the sun's rays hit the middle of the Earth _____

• at an angle
• straight on
• from the side
• near the poles

Sunlight that strikes the Earth at a 90 degree angle is called _____

• direct sunlight
• indirect sunlight
• current sunlight
• cornered sunlight

Sunlight that strikes the Earth at at an angle is called _____

• direct sunlight
• indirect sunlight
• angled sunlight
• cycled sunlight

At Earth's poles light is spread out over a larger area and is _____

• less intense
• more intense
• hotter
• colder

The area around the equator is a _____

• low-pressure zone
• high-pressure zone
• low-density zone
• high-density zone

Giant currents of circulating air in the atmosphere are called _____

• circuits
• cells
• cavities
• jets streams

In each atmospheric cell, _____

• cold air sinks and warm air rises
• cold air rises and warm air sink
• sinking air cools and rising air warms
• sinking air warms and rising air cools